Handset telephone unit



FIG. 1 is a perspective view from above of the top, front and one side of a handset telephone unit showing our new design;

FIG. 2 is a side elevational view thereof;

FIG. 3 is a real elevational view thereof;

FIG. 4 is a front elevational view thereof;

FIG. 5 is a top plan view thereof; and

FIG. 6 is a bottom view thereof. 

The ornamental design for a handset telephone unit, as shown. 